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Finding the Fourth Proportional to 99,566.68, 149,234.46 and 40,328.68

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Solution

The fourth proportional to 99,566.68, 149,234.46 and 40,328.68 is: 60,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,566.68 : 149,234.46 = 40,328.68 : x
  2. Step 2: Convert to fraction form
    99,566.68/149,234.46 = 40,328.68/x
  3. Step 3: Cross multiply
    99,566.68x = 149,234.46 × 40,328.68
  4. Step 4: Simplify right side
    99,566.68x = 6,018,428,782.31
  5. Step 5: Solve for x
    x = 6,018,428,782.31/99,566.68
  6. Step 6: Final answer
    x = 60,446.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.